^48 CYCLOPHOmD.E. 



shorter ; in these characters it approaches very near to A. niiithis, 

 MV. Blanford, from Arakau, but the recurved rib is in this last 

 species much less developed.'' (Godtvin- Austen.) 



367. Alycgeus digitatus, Blanford. 



Alycaus digitatus, Blanford, J. A. S. B, xl, part 2, 1871, p, 41, pi. 2, 

 figs. 4, 4 «, 4 6: Pfeiffer, Mon. Pneum. Siippl. 3, 1875, p. 64; 

 Theobald, Cat. Shells Brit. India, 1870, p. 39; Nevill, Hand 

 List, i, 1878, p. 294; Godwin-Austen, Laud & Freslnv. Moll. 

 India, ii, 1914, p. 339, pi. 134, figs. 5, 5 «. 



Alycaeus {Churax) digitutus, Kobelt & MiJllendorff, Nachr. Deuts. 

 iMalak. Ges. xxix, 1897, p. 152 ; id.. Cat. Pneum. 1899, p. 48. 



Alycaeus [Dicharax) digitatus, Kobelt, Das Tierreicb, Lief. 16, 

 1902, p. 369. 



Original description : — "Testa solida, depresse turbinata, umbili- 

 cata, albido-cornea, regulariter costulata ; pone aperturam usque 

 ad tubulum striata. Spira parum excerta, apice obtusulo. 

 Anfractus 4, rotundati ; ultimus jjiflatus, deinde constrictus, 

 iterum abrupte expansus, denique abrupte constrictus, antice 

 depressus et in 5 plicationes validas deshjens. Tubulus post 

 constrictionem oriens, recurvatus, i, anfractus subsequans. Sutura 

 impressa. Apertura perobliqua. Peristoma duplex ; externum 

 simplex evertatum ; internum coiitinuum, superne valde prolou- 

 gatum, 5-plicatum. Plica basalis abrupte recurvata. Operculum 

 corneum, extus coucavum. 



" Alt. 3"6 mm. ; diam. major 5"5 ; minor 4 mm. Aperturae alt. 

 2-25, lat. 2-75 mm." 



Hab. India : Darjeeling ; Kungno Yalley, Sikhini Himalayas 

 (Blanford, Athinson) ; Eechila Peak, Western Bhutan Hills 

 ( Godtvin- Austen). 



" Of all the Alycsei yet described with plicate peristomes, this 

 exhibits the character in the most exaggerated degree ; the free 

 portion of the lip being prolonged into live digitiform folds, 

 nearly a millimetre in length. The ridge-shaped fold between 

 the two constricted portions is very abrupt, as in Ahjcams 

 plectocheilus, which species, together with a yet unpublished form 

 found by Major Godwin-Austen in the Khasi Hills, are its 

 nearest allies. In some specimens, taken alive, the costulation has 

 disappeared from the greater portion of the upper whorls, and 

 I'emains oidy in patches ; so that on a cursory inspection the 

 whorls appear to be smooth and striate ; it is most distinct on 

 the inflated portion of the shell." (Blanford.) 



Godwin- Austen refers to two specimens, found in the Blanford 

 collection, with the MS. name Jimhriatus. The specimens are 

 bleached and poor, and represent a dwarf variety of A. digitatus. 



368. Alycaeus dohertyi, Godivin- Austen. 



Alt/ceeus dohertyi, Godwin- Austen, Proc. Zool. Soc. 1893, p. 595 ; 

 id., Land and Freshw. Moll. India, ii. 1897, p. 3, pi. 63, figs. 3, 

 3«; id., 1914, p. 408. 



